236 CARNEGIE INSTITUTION OF WASHINGTON. 



2. Asia. — Observer F, Brown conducted an expedition in southeastern 



and eastern China, November and December 1917. He secured 

 also a comparison of his instruments with those of the Jesuit 

 Observatory at Lukiapang, near Shanghai. This is the second 

 series of such comparisons of instruments at this observatory. 



3. South America. — Observer Allen Sterling led an expedition in Central 



Brazil, along the Amazon River and tributaries. On his homeward 

 journey he also reoccupied some stations in French, Dutch, and 

 British Guianas, where the Department of Terrestrial Magnetism 

 had made observations previously. 



SPECIAL OBSERVATIONS. 



4. North America. — In connection with the Departments' program of 



work during the total solar exlipse in the United States, June 8, 

 1918, magnetic observations were made by H. W. Fisk and C. C. 

 Ennis at Goldendale, Washington; by L. A. Bauer at Corona, 

 Colorado, where the elevation above sea-level is about 11,800 

 feet; by W. J. Peters at Lake Moraine, near Pikes Peak; by S. J. 

 Mauchly, D. M. Wise, A. Thomson, and M. B. Smith at Lakin, 

 Kansas; by C. W. Hewlett at Brewton, Alabama; and C. R. 

 Duvall at Washington, D. C. In addition, special eclipse obser- 

 vations were made by persons associated for the occasion with 

 the Department, viz. by G. L. Hosmer at Woburn, Massachu- 

 setts; by C. T. Knipp at Urbana, Illinois; by H. B. Wahlin at 

 Columbia, Missouri; by J. M. Kuehne at Austin, Texas; by W. J. 

 Raymond at Berkeley, California. Furthermore, Professor E. W. 

 Elder and Mr. R. Sutton, of the East End High School of Denver, 

 assisted L. A. Bauer at Corona and Mr. Robinson of Colorado 

 College assisted Mr. Peters at Lake Moraine. The Department 

 also received in this work the cooperation of the United States Coast 

 and Geodetic Survey, which, besides furnishing data from its 

 magnetic observatories, arranged for observations by S. A. Deel 

 at Green River, Wyoming; by W. W. Merrymon at Mena, Arkan- 

 sas; and by J. R. Benton at Orlando, Florida. Similarly, coopera- 

 tion was received from the Canadian magnetic observatories, the 

 Canadian magnetic survey, and from observatories in Japan, 

 Philippines, China, and Australia. For further account of the 

 eclipse observations, see pages 257-258 and 260-261. 



After the completion of the eclipse work, the various parties 

 proceeded to the Pikes Peak region, where magnetic observations 

 were made at various altitudes, ranging from 6,000 to 14,000 

 feet above sea-level, by L. A. Bauer, C. C. Ennis, H. W. Fisk, 

 and W. J. Peters of the Department, and by S. A. Deel and W. 

 W. Merrymon of the United States Coast and Geodetic Survey. 

 Atmospheric-electric observations also were made on Pikes Peak 

 by S. J. Mauchly and M. B. Smith. 



MAGNETIC OBSERVATORY WORK. 



Western Australia. — In spite of vexatious delays resulting from 

 various causes, Mr. Wallis, magnetician-in-charge, hopes to complete 

 by the end of 1918 the observatory buildings on the site finally selected, 

 Watheroo, which is about 120 miles north of Perth. It was mentioned 



